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Cu2S-EuS phase diagram

  • Physicochemical Analysis of Inorganic Systems
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Abstract

In the Cu2S-EuS system, a eutectic is formed between Cu2S- and EuS-based solid solutions (ss) at (1069 ± 2) K, 24.5 mol % EuS. EuS dissolves 7.0 (at 1770 K), 5.0 (1170 K), and 3.0 (770 K) mol % Cu2S. A β-Cu2S-based ss is of the open type, has an extent (mol %) of 15.5 (at 1069 K), 7.5 (970 K), 4.5 (770 K), 2.5 (520 K), and 1.5 (379 K) EuS, and melts incongruently at 1186 K, 7.0 mol % EuS. α-Cu2S at 379 K dissolves 6.5 mol % EuS; γ-Cu2S at (1186 ± 3) K dissolves 3.5 mol % EuS.

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Authors and Affiliations

  1. Tyumen State University, Tyumen, Russia

    O. V. Andreev & A. V. Ruseikina

Authors
  1. O. V. Andreev
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  2. A. V. Ruseikina
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Original Russian Text © O.V. Andreev, A.V. Ruseikina, 2012, published in Zhurnal Neorganicheskoi Khimii, 2012, Vol. 57, No. 11, pp. 1596–1602.

The results of this study were communicated at the 17th International Conference on Chemical Thermodynamics (Kazan, June 29 through July 3, 2009) [11].

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Andreev, O.V., Ruseikina, A.V. Cu2S-EuS phase diagram. Russ. J. Inorg. Chem. 57, 1502–1507 (2012). https://doi.org/10.1134/S0036023612110034

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  • DOI: https://doi.org/10.1134/S0036023612110034

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